Correct subnested objects parsing for sli_specification

lib/kennel/importer.rb

@@ -146,7 +146,14 @@ def pretty_print(hash)
 
       sort_hash(hash).map do |k, v|
         pretty_value =
-          if v.is_a?(Hash) || (v.is_a?(Array) && !v.all? { |e| e.is_a?(String) })
+          if k == :sli_specification && v.is_a?(Hash)
+            formatted_sli_specification = JSON.pretty_generate(v)
+              .gsub(": null", "=> nil") # Convert JSON null to Ruby nil
+              .gsub(/"([^"]+)":\s*/, '\1 => ') # Convert JSON keys to Ruby hash rocket syntax
+              .gsub(/^/, "    ") # Indent
+            formatted_sli_specification = convert_strings_to_heredoc(formatted_sli_specification)
+            "\n#{formatted_sli_specification}\n  "
+          elsif v.is_a?(Hash) || (v.is_a?(Array) && !v.all? { |e| e.is_a?(String) })
             # update answer here when changing https://stackoverflow.com/questions/8842546/best-way-to-pretty-print-a-hash
             # (exclude last indent gsub)
             pretty = JSON.pretty_generate(v)